Stool



FIG. 1 is a perspective view of a stool showing my new design inaccordance with a first embodiment of the invention;

FIG. 2 is a side plan view of the stool shown in FIG. 1, all of the sideview being identical;

FIG. 3 is a top plan view of the stool shown in FIG. 1; and,

FIG. 4 is a bottom plan view of the stool shown in FIG. 1.

The ornamental design for a stool, as shown and described.